Yielding cone disk



-f Patented June 2, 193i UNITED STATES: PATENT. orales INSULA'TOB CORPORATION, 0F NEW YORK, N. Y., A. CORPORATION OF DELAWARE v YIELDDG GONE DISK i Application mea maren as, 192s. semi no'. 264,103.

In United states Letters Patent Nos.

31,400,563, dated December- 2o, 1921, and

1,404,876, dated'January 31, 1922, there is disclosed and claimed a wholly non-metallic [Q connection and supportbetween two metal parts. It has since been proposed to Jprovide such a connection in the form of a yielding, non-metallic bushing interposed operatively between the two metal portions to be connected and to `associate with such. a bushing means to compress it and to hold it against slippage with respect to the two such metal portions. The present invention 1s another form, of that covered by the two above recited .Letters Patent and partakes of the characteristics of Athe embodiments illustrated therein and also of the so-called bushin type connection. It is adapted particular y for'the connection of two metal 80 parts which have relative oscillation, as is the case in shackle connections for the'springs of vehicles. More particularly, the invention is concerned with the provision of such a connection wherein a plurality of units are l5 provided at spaced intervals and means are associated therewith to simultaneously compress all of such units and enga them with metal portions for retention agamst sllppage. Still another important object of the inven- 80 tion is to so form the non-metallic, yielding connectors asto more effectively resist forces acting inY any and all planes to displace the two vconnected metal parts relatively.

In accordance 'with the invention, it is pro- -posed to provide, in the case of a shackle connection, two blocks of rubber at spaced intervals on the pintle and having opposed inclined surfaces engaging at least .one of the connected metal parts, whereby forces other than those applied radially of the pintle are more eiectivel resisted. y This condition Ymay beaccomp 'shed in various embodiments as will appear more particularly hereinafter, although generally speaking the most practical orms thus far devised have been those in which the nonmetallic material is of frusto-conical or frusto-pyramidal form or' in which'everselyv I0 unit but of such form.

`shackle and block .trated a kdepending bracket a from the ve- The invention will be more fully described in connection with the accompanying drawings showing practical embodiments withseveral forms of fittings in which p Fi re 1 is a view in vertical section showing t e application of the improvements as a connectlon for a spring shackle to a vehicle frame. i I

Figure 2 is a view artly in vertical section showin another crm of the invention applied to t e fixed end of a vertical spring.

Figures 3, 4 and 5 are sectional views simi- AUGUST n. maar, or ooLIEeE PoINr, Naw Yonm'asslonon 'ro THE numana snocx lar to Figure 2 but'showing somewhat modilied forms of connectors and littings.y

Figure 6 is a view partly in section and partly in elevation. of a ymodified form of made in accordance with the invention. A

Referring now toFigure 1, there is illushicle frame formed with an open eye a which may be of c ircular or otherl cross-section to receive therethrough a pintle bolt b. Adj posite ends of this bolt are seopposite ends ca e i lent (iig e cured shac e members c the lower ends of 75,

e to the bracket a through 8o forreasons which now exist in the art to e place the material constituting the said connectors under compression and it is conducive in a shackle o ration of this character to have this material held, so far as is practical, .against slippage-with respect to the metal surfaces whic engage the material, so that oscillatory movements are accommodated lartgel within the body ofthe material itsel t also seems advisable, in vehicle construction particularly to incorporate in theshackle connection means for efectively resisting forces other than radial,

' suchas, for instance,those forcesnincident.

I torswhich are seated thereon. It may be advisable, as indicated in Figure 1, to place within the eye e suitable metal seats f which may be formedsomewhat as thimbles, but conforming in' cross-sectional outline to the bore of the eye and to the inclined ends e thereof, these seats, when assembled, being preferably spaced apart. The connectors shown in Figure 1 are each also formed with reversely inclined surfaces adapted to be received by similarly formed seats e in the shackle member c. Each of the connectors is also formed with a central opening through which pass the respective bolts b, d.'

When the parts of the character described are assembled in the relationship indicated,

it will be evident that when the nuts b", d

are screwed up on therespective bolts '6, d, the respective connectorsv associated there- Ywith will be compressed between the opposed seats in the respective eyes and the seats in the respective shackle pieces which are reversely inclined with respect to the e seats of the eyes and will also be brought into snug frictional engagement. with the seats, so as to be held thereon and against the bolts to prevent slip age.

This last named conditlon might a so be aidedby making the eyes or the bolts, or both, of irregular cross-sectional outline. The load of the vehicle will, of course, be transmitted through the metal parts substantially radially of the bolts. However, additional forces will be compressed on the parts in lanes other than4 vertical planes andE such orces, no matter in what direction, will have -their components most eiectively resisted by the opposed, inclined surfaces of the Yvarious spaced conductors. Relative .oscillation of the connted metal parts w1ll beaccommodated in material. n the embodiment shown in Fi re 2, a bracket g on the frame 71. of the vehicle has dependin' arms with'aligned o enings there- 1n tapers as indicated at gf. these openings are seated blocks z' of yieldin nonwithin the mass of the yieldmetallic material, the general form o which may be frusto-conical or frusto-pyramidal. The inclination of the surfaces of the 'respective blocks is relativelyreverse so that one block cooperates with the .other in opposing forces other than radial.' A bolt l: passes Y:Lacasse through the blocks and carries thereon conl cavo plates lo constituting seats engaging the outer ends ofthe blocks z, whereby they conline and compress when the nut k2 is screwed up on the bolt. The spring eye Zhas its bore reversely .tapered at opposite ends, as indicated at Z', the taper being similar to and substantially a continuation of, kin each instance, the ta er g of the openings in the supporting y0 e g. However the spring eye Z will be spaced from the arms and the yielding material, when compressed, may flow into in the interest of resiliency andsecurity. Similarly the endplates lo', when theparts are assembled, will be spaced from the outer sides of the yoke g so as to afford additional space for the iiow of yielding material,as indicated at 2. Y

So far as concerns the general character of the non-metallic connectors and the relationship of parts, the modification illustrated in Figure 3 is substantially like the construetion shown in Figure 2. The

e rincipal difference is in the character ofiilie end lates m which may be substantially at as own but formed with a corrugatlon or rib m in the interest of rigidity and'strength.

In' Figure 4, the end plate n is shown as cup-shaped and in Figure 5 the end plate o Asuch opening, as indicated 'at i', as is desired while of concavo form, as in Figure 2, has

a nice `fit within Vthe opening in the arm of the yoke p, thereby confining and protecting the ieldin material ore completely. This mig t not desirabl in all'mstances, because it has been found advantageous to af- .ford the material rather full opportunity to` flow when compressed.

In Figure 6 the arrangement is somewhat further mo ed in that ,the block g of the material-constituting the connector is only partly of conical or pyramidal outline and partl of cylindrical or other regular form. As il ustrated, the conical or pyramidal section indicated` at g' fits within the correspondingl formed seat in the metal shackle r while t' e extended regular portion g of the block its within a similarly shaped partv of the shackle. Greater radial bearing area is thus obtained and yet the advantage of having inclined, opposed surfaces is retained. A somewhat modified connection in this form mightalso be provided for by having the parts of such character that 'slippage between the section gf andthe metal is prevented, while' some degree vof-'slippage between the inclined portien g of the block andthe metal is permitted, the torsional forces within the material pulling up duringrelative rae 1 1,eos,sue

the appended claim.

What I claim is: f

A wholly non-metallic connection and support between two metallic parts of a motor vantages are obtained by means which satisfy vehicle, one of which arts is tobe connect- I ed to and supported y the other of said parts comprising cup-shaped recesses ycarried by each of the respective parts havin axially inclined bearing surfaces, indepen ent blocks of yielding material spaced from one another and engaged along separated surfaces with the respective-parts and having axial openings extending therethrough presenting exten ed bearing surfaces and means extending through the openin 1n the blocks to secure the arts together, t e firstnamed engaging sur aces of said blocks being relativel inclined to one another, and certain of t e engaging surfaces of each of the respective blocks being relatively inclined with res ct to each other and to the surfaces within t e axial openings to engage the inclined bearing surfaces ofthe cup-shaped recesses.

This specification signed this 19th day of March, A.v D. 1928. i

AUGUST H. LEIPERT. 

